Wall surface flatness detection device and detection method thereof

Abstract

The application discloses a wall flatness detection device and a detection method thereof. The detection device comprises a circular base for abutting against a wall, a rotating disc arranged in parallel with the circular base and rotationally connected to the top of the circular base, a monitoring member connected to the rotating disc for monitoring whether the rotating disc is vertical and further judging whether the wall is inclined, a pair of line projectors connected to opposite sides of the rotating disc for projecting a reference line parallel to the plane where the rotating disc is located to visually monitor the wall flatness, and an adjusting member movably connected to the circular base for adjusting the posture of the circular base when the monitoring member detects that the wall is inclined so that the reference line is in a vertical state. The detection device improves the construction efficiency.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and in particular to a wall surface flatness testing device and its testing method. Background Technology

[0002] Currently, the common practice for wall flatness testing is to first use a straightedge against the wall, and then insert a feeler gauge into the gap between the straightedge and the wall to take a measurement. This method can only test the flatness of the wall in a small area, and a feeler gauge needs to be inserted at each measurement point. The testing range is small, and it cannot visually show the low points and high points of the wall. Since the wall surface is generally large, measuring it bit by bit with a straightedge is very inefficient. In addition, although most of the actual measurements are of vertical walls, there are some cases where the wall is tilted due to construction errors. In these cases, ordinary measuring tools cannot be used to measure the flatness. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a wall flatness detection device and its detection method, which facilitates rapid flatness detection of the entire wall, improves construction efficiency, and can also be used to detect the flatness of inclined walls, thus improving practicality.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is a wall surface flatness detection device, comprising:

[0005] A round base for attaching to a wall surface;

[0006] A rotating disk is arranged parallel to the circular base and rotatably connected to the top of the circular base. A monitoring device is connected to the rotating disk to monitor whether the rotating disk is vertical and thus determine whether the wall is tilted.

[0007] A pair of line projectors are connected to opposite sides of the rotating disk to project a baseline parallel to the plane of the rotating disk for visual monitoring of the wall flatness.

[0008] An adjusting element, movably connected within the circular base, is used to adjust the posture of the circular base to ensure the baseline is vertical when the monitoring element detects wall tilt.

[0009] A further improvement of the wall flatness detection device of the present invention is that the circular base includes a contact plate for abutting against the wall and a cylindrical connecting block fixed to the top surface of the contact plate. The rotating disk is located above the cylindrical connecting block and is arranged parallel to the contact plate. A cylinder is connected to the bottom of the rotating disk. The cylinder is rotatably sleeved on the outside of the cylindrical connecting block. An annular slider is connected to the inner circumference of the cylinder. A first groove is opened on the outer circumference of the cylindrical connecting block for the annular slider to slide.

[0010] A further improvement of the wall flatness detection device of the present invention is that the adjusting component includes:

[0011] An installation box is connected to the middle of the cylindrical connecting block, and a cavity is provided inside the installation box;

[0012] Two support rods are symmetrically arranged with the center of the cylindrical connecting block as the midpoint and slidably connected in the circular base. The cylindrical connecting block has a second sliding groove for the two support rods to slide respectively. The bottom of the mounting box has a first through hole for the top ends of the two support rods to pass through respectively. The first through hole communicates with the cavity. The contact plate has a second through hole for the bottom ends of the two support rods to pass through respectively.

[0013] Two springs are respectively connected between the two support rods and the inner wall of the corresponding second slide groove. In the reset state of the springs, the support rods are completely located inside the circular base and the top end is located inside the cavity.

[0014] A circular extrusion plate, height adjustable, is connected within the cavity to selectively extrude one of the support rods, causing the corresponding support rod to slide out of the corresponding second through hole and abut against the wall, thereby adjusting the posture of the circular base.

[0015] A first driving component is connected within the cavity for adjusting the height of the circular extrusion plate.

[0016] A further improvement of the wall flatness detection device of the present invention is that the first driving component includes:

[0017] The first drive motor is vertically connected to the inner top wall of the cavity;

[0018] A lead screw, which is coaxially connected to the motor shaft of the first drive motor;

[0019] The first threaded sleeve has one end screwed onto the bottom of the lead screw, and the other end connected to the center of the circular extrusion plate;

[0020] An L-shaped rod is used to limit the rotation of the first threaded sleeve. A limiting groove is vertically opened on the outer side of the first threaded sleeve for sliding connection of the horizontal bar of the L-shaped rod. The vertical bar of the L-shaped rod is connected to the inner top wall of the cavity.

[0021] A further improvement of the wall flatness detection device of the present invention is that two third through holes are provided on the circular extrusion plate, the third through holes are adapted to the support rod, and the positions of the two third through holes satisfy the following condition: only one support rod can be inserted at a time. The first threaded sleeve is rotatably connected to the circular extrusion plate, and a second driving member is connected in the cavity to drive the circular extrusion plate to rotate so that one of the third through holes is aligned with the selected support rod.

[0022] A further improvement of the wall flatness detection device of the present invention is that the second driving component includes:

[0023] The second drive motor is vertically connected to the inner top wall of the cavity;

[0024] The drive gear is coaxially connected to the bottom end of the motor shaft of the second drive motor. The circular extrusion plate has an arc-shaped groove, the center of which coincides with the center of the circular extrusion plate. A rack is connected to the inner arc surface of the arc-shaped groove. The drive gear extends into the arc-shaped groove and meshes with the rack, so that when the second drive motor drives the drive gear to rotate, it can drive the circular extrusion plate to rotate.

[0025] A further improvement of the wall flatness detection device of the present invention is that an anti-slip pad is connected to the bottom of the contact plate, and a fourth through hole is provided on the anti-slip pad for the bottom ends of the two support rods to pass through respectively.

[0026] A further improvement of the wall flatness detection device of the present invention is that the monitoring component includes a bubble level that is set perpendicular to the rotating disk and connected to the top of the rotating disk. The level is determined by observing whether the bubble is centered, thereby determining whether the rotating disk is vertical.

[0027] A method for detecting wall flatness includes the following steps:

[0028] Step 1: Provide the wall flatness testing device mentioned above;

[0029] Step 2: Place the circular base against the wall and use the monitoring device to check whether the rotating disk is vertical in order to determine whether the wall is tilted;

[0030] Step 2.1: If the wall is not tilted, use a pair of projection devices to project two reference lines parallel to the plane of the rotating disk to visually monitor the flatness of the wall.

[0031] Step 2.2: If the wall is tilted, adjust the posture of the circular base using the adjusting device until the monitoring device detects that the rotating disk is in a vertical state. Then, use a pair of projection devices to project two reference lines parallel to the plane where the rotating disk is located to visually monitor the flatness of the wall.

[0032] A further improvement of the wall flatness detection method of the present invention is that, when performing step 2.1 or 2.2 above, the rotating disk is rotated to adjust the position of the two reference lines, thereby visually monitoring the flatness of the entire wall surface.

[0033] Compared with the prior art, the advantages of the present invention are:

[0034] 1. By using a rotating disc in conjunction with a projection device, the position of the baseline on the wall can be easily adjusted, thereby quickly detecting the flatness of the entire wall.

[0035] 2. By setting adjustment components, the flatness of inclined walls can be detected. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a front view of the wall flatness detection device of the present invention.

[0038] Figure 2 This is a cross-sectional view of the wall flatness detection device of the present invention.

[0039] Figure 3 This is a detailed structural diagram of the adjusting component of the wall surface flatness detection device of the present invention.

[0040] Figure 4 This is a top view of the circular extrusion plate of the wall flatness detection device of the present invention.

[0041] Figure 5 This is a detailed structural diagram of the second drive component of the wall surface flatness detection device of the present invention.

[0042] Figure 6 This is a detailed diagram of the support rod structure of the wall flatness detection device of the present invention.

[0043] Figure 7 This is a detailed structural diagram of the monitoring component of the wall surface flatness detection device of the present invention.

[0044] In the diagram: 1. Rotating disk; 2. Circular base; 201. Cylindrical connecting block; 202. Contact plate; 203. Anti-slip pad; 3. Monitoring component; 301. Second threaded sleeve; 302. Bubble level; 303. Threaded section; 4. Line projector; 5. High-intensity light; 6. Marker block; 7. Handle; 8. Adjusting component; 801. Mounting box; 802. Cavity; 803. Circular extrusion plate; 804. First drive motor; 80 5. Lead screw; 806. First threaded sleeve; 807. L-shaped rod; 808. Second drive motor; 809. Drive gear; 810. First through hole; 811. Third through hole; 812. Arc groove; 813. Rack; 814. Support rod; 815. Guide groove; 816. Guide block; 817. Spring; 818. Anti-slip sleeve; 9. Annular slider; 10. First slide groove; 11. Second slide groove; 12. Cylinder. Detailed Implementation

[0045] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0046] The wall flatness detection device and its detection method of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0047] Please see Figures 1 to 7 As shown, the wall flatness testing device includes:

[0048] Circular base 2, used to abut against the wall;

[0049] A rotating disk 1 is set parallel to the circular base 2 and rotatably connected to the top of the circular base 2. A monitoring element 3 is connected to the rotating disk 1 to monitor whether the rotating disk 1 is vertical and thus determine whether the wall is tilted.

[0050] A pair of projection devices 4 are connected to opposite sides of the rotating disk 1 to project a baseline parallel to the plane of the rotating disk 1 for visual monitoring of the wall flatness.

[0051] Adjustment component 8 is movably connected within the circular base 2 and is used to adjust the posture of the circular base 2 so that the baseline is in a vertical state when the monitoring component 3 detects that the wall is tilted.

[0052] The rotating disk 1, in conjunction with the projection device 4, facilitates the adjustment of the baseline position on the wall, thereby enabling rapid flatness testing of the entire wall.

[0053] Specifically, a handle 7 is connected to the middle of the top of the rotating disk 1.

[0054] The handle 7 is designed to facilitate the control of the rotating disc 1 by construction personnel.

[0055] Preferably, the circular base 2 includes a contact plate 202 for abutting against a wall and a cylindrical connecting block 201 fixed to the top surface of the contact plate 202. The rotating disk 1 is located above the cylindrical connecting block 201 and is arranged parallel to the contact plate 202. A cylinder 12 is connected to the bottom of the rotating disk 1. The cylinder 12 is rotatably sleeved on the outside of the cylindrical connecting block 201. An annular slider 9 is connected to the inner circumference of the cylinder 12. A first groove 10 for the annular slider 9 to slide is opened on the outer circumference of the cylindrical connecting block 201.

[0056] By setting the annular slider 9 and the first groove 10, the rotational stability of the rotating disk 1 is ensured.

[0057] Specifically, a pair of the projectors 4 are connected to opposite sides of the cylinder 12 and are positioned opposite each other.

[0058] Specifically, a high-intensity lamp 5 is also connected to the outer periphery of the cylinder 12.

[0059] By setting up this strong light 5, the pits and depressions on the wall can be observed directly by lighting, so as to compare them with the baseline.

[0060] Preferably, the adjusting element 8 includes:

[0061] Mounting box 801 is connected to the middle of the cylindrical connecting block 201, and a cavity 802 is provided inside the mounting box 801;

[0062] Two support rods 814 are symmetrically arranged with the center of the cylindrical connecting block 201 as the midpoint and are slidably connected in the circular base 2. The cylindrical connecting block 201 has a second sliding groove 11 for the two support rods 814 to slide respectively. The bottom end of the mounting box 801 has a first through hole 810 for the top ends of the two support rods 814 to pass through respectively. The first through hole 810 communicates with the cavity 802. The contact plate 202 has a second through hole for the bottom ends of the two support rods 814 to pass through respectively.

[0063] Two springs 817 are respectively connected between the two support rods 814 and the inner wall of the corresponding second slide groove 11. In the reset state of the springs 817, the support rods 814 are completely located in the circular base 2 and the top end is located in the cavity 802.

[0064] A circular extrusion plate 803 is height-adjustable and connected within the cavity 802. It is used to selectively extrude one of the support rods 814, so that the corresponding support rod 814 slides out of the corresponding second through hole and abuts against the wall, thereby adjusting the posture of the circular base 2.

[0065] The first driving component is connected within the cavity 802 for adjusting the height of the circular extrusion plate 803.

[0066] Specifically, a marker block 6 is provided at the intersection of the line connecting the outer peripheral surface of the contact plate 202 and the projection of the two support rods 814.

[0067] When the circular base 2 is attached to the wall, the two marker blocks 6 are positioned directly above and directly below, respectively, thereby ensuring that the two support rods 814 are positioned directly above and directly below, so as to adjust the posture based on the inclined wall.

[0068] Specifically, the bottom end of the support rod 814 is connected to an anti-slip sleeve 818.

[0069] By setting the anti-slip sleeve 818, the static friction between the support rod 814 and the wall surface is increased, thereby improving stability.

[0070] Specifically, the support rod 814 has a guide groove 815 along its length, and a guide block 816 is connected to the inner wall of the second slide groove 11. The spring 817 is located in the guide groove 815 and one end is connected to the guide block 816, and the other end is connected to the bottom end of the guide groove 815. In the reset state of the spring 817, the guide block 816 is positioned in the middle of the guide groove 815.

[0071] By setting the guide groove 815 and the guide block 816, the extension and retraction direction of the spring 817 is restricted.

[0072] Specifically, a guide rod is connected along the length direction inside the guide groove 815, and a through hole is provided on the guide block 816 for the guide rod to pass through. The spring 817 is sleeved on the outside of the guide rod.

[0073] By setting this guide rod, the extension and retraction direction of the spring 817 is further restricted, preventing the spring 817 from curling and getting tangled, thus affecting its use.

[0074] Specifically, the two support rods 814 are arranged in a figure-eight shape.

[0075] By arranging the two support rods 814 in a figure-eight configuration, the support stability of the support rods 814 is improved.

[0076] Preferably, the first driving element includes:

[0077] The first drive motor 804 is vertically connected to the inner top wall of the cavity 802;

[0078] Lead screw 805, which is coaxially connected to the motor shaft of the first drive motor 804;

[0079] The first threaded sleeve 806 has one end threaded onto the bottom of the lead screw 805, and the other end connected to the center of the circular extrusion plate 803;

[0080] An L-shaped rod 807 is used to limit the rotation of the first threaded sleeve 806. A limiting groove is vertically provided on the outer side of the first threaded sleeve 806 for the horizontal bar of the L-shaped rod 807 to slide. The vertical bar of the L-shaped rod 807 is connected to the inner top wall of the cavity 802.

[0081] By setting the L-shaped rod 807 to restrict the rotation of the first threaded sleeve 806, the first threaded sleeve 806 is restricted to move only vertically when the lead screw 805 rotates, thereby driving the circular extrusion plate 803 to move vertically within the cavity 802.

[0082] Preferably, the circular extrusion plate 803 has two third through holes 811, which are adapted to the support rod 814. The positions of the two third through holes 811 satisfy the condition that only one support rod 814 can pass through at the same time. The first threaded sleeve 806 is rotatably connected to the circular extrusion plate 803. A second driving member is connected in the cavity 802 to drive the circular extrusion plate 803 to rotate so that one of the third through holes 811 is aligned with the selected support rod 814.

[0083] By restricting the positions of the two third through holes 811, one of the support rods 814 can be positioned directly opposite the corresponding third through hole 811, while the other support rod 814 is misaligned with the corresponding third through hole 811. When the circular extrusion plate 803 is pressed down subsequently, the support rod 814 positioned directly opposite the third through hole 811 is unaffected, while the support rod 814 misaligned with the third through hole 811 will be squeezed and slide along the corresponding second groove 11.

[0084] Specifically, the first threaded sleeve 806 is connected to the circular extrusion plate 803 via a bearing.

[0085] Preferably, the second drive component includes:

[0086] The second drive motor 808 is vertically connected to the inner top wall of the cavity 802;

[0087] The drive gear 809 is coaxially connected to the bottom end of the motor shaft of the second drive motor 808. The circular extrusion plate 803 has an arc-shaped groove 812, the center of which coincides with the center of the circular extrusion plate 803. A rack 813 is connected to the inner arc surface of the arc-shaped groove 812. The drive gear 809 extends into the arc-shaped groove 812 and meshes with the rack 813, so that when the second drive motor 808 drives the drive gear 809 to rotate, it can drive the circular extrusion plate 803 to rotate.

[0088] The engagement of the drive gear 809 and the rack 813 drives the circular extrusion plate 803 to rotate within a certain range, thereby improving rotational stability.

[0089] Preferably, the bottom of the contact plate 202 is connected to an anti-slip pad 203, and the anti-slip pad 203 has a fourth through hole for the bottom ends of the two support rods 814 to pass through respectively.

[0090] By setting the anti-slip pad 203, the static friction between the circular base 2 and the wall surface is increased, thereby improving stability.

[0091] Preferably, the monitoring device 3 includes a bubble level 302 that is set perpendicular to the rotating disk 1 and connected to the top of the rotating disk 1. The level 302 is used to determine whether the rotating disk 1 is vertical by observing whether the bubble is centered.

[0092] Specifically, the bubble level 302 is retractably connected to the rotating disk 1. Both the upper and lower ends of the bubble level 302 are connected to threaded sections 303. The top of the rotating disk 1 has a vertically opening mounting groove for accommodating the bubble level 302. A second threaded sleeve 301 is connected to the top of the mounting groove. The second threaded sleeve 301 is adapted to the two threaded sections 303. In the retracted state of the bubble level 302, the second threaded sleeve 301 is connected to the threaded section 303 at the top of the bubble level 302. In the usage state of the bubble level 302, the second threaded sleeve 301 is connected to the threaded section 303 at the bottom of the bubble level 302.

[0093] Specifically, an anti-detachment component is also connected to the threaded section 303 at the bottom of the bubble level 302 to prevent the bubble level 302 from coming out of the mounting groove. The diameter of the anti-detachment component is larger than the inner diameter of the second threaded sleeve 301 and smaller than the outer diameter of the second threaded sleeve 301.

[0094] A method for detecting wall flatness includes the following steps:

[0095] Step 1: Provide the wall flatness testing device mentioned above;

[0096] Step 2: Place the circular base 2 against the wall and use the monitoring device 3 to monitor whether the rotating disk 1 is vertical, thereby determining whether the wall is tilted;

[0097] Step 2.1: If the wall is not tilted, use a pair of projectors 4 to project two reference lines parallel to the plane of the rotating disk 1 to visually monitor the flatness of the wall.

[0098] Step 2.2: If the wall is tilted, use the adjusting component 8 to adjust the posture of the circular base 2 until the monitoring component 3 detects that the rotating disk 1 is in a vertical state. Then, use a pair of projection devices 4 to project two reference lines parallel to the plane where the rotating disk 1 is located to visually monitor the flatness of the wall.

[0099] Preferably, when performing step 2.1 or 2.2 above, the rotating disk 1 is rotated to adjust the position of the two baselines, thereby visually monitoring the flatness of the entire wall surface.

[0100] It should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding and reading. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0101] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A wall surface flatness testing device, characterized in that, include: A round base for attaching to a wall surface; A rotating disk is arranged parallel to the circular base and rotatably connected to the top of the circular base. A monitoring device is connected to the rotating disk to monitor whether the rotating disk is vertical and thus determine whether the wall is tilted. A pair of line projectors are connected to opposite sides of the rotating disk to project a baseline parallel to the plane of the rotating disk for visual monitoring of the wall flatness. An adjusting component, movably connected within the circular base, is used to adjust the posture of the circular base to ensure the baseline is vertical when the monitoring component detects wall tilt. The circular base includes a contact plate for abutting against the wall and a cylindrical connecting block fixed to the top surface of the contact plate. A rotating disk is located above the cylindrical connecting block and parallel to the contact plate. A cylindrical body is connected to the bottom of the rotating disk and rotatably fitted around the cylindrical connecting block. An annular slider is connected to the inner circumference of the cylindrical body. The outer periphery of the connecting block has a first sliding groove for the annular slider to slide. The adjusting component includes: a mounting box connected to the middle of the cylindrical connecting block, the mounting box having a cavity; two support rods symmetrically arranged with the center of the cylindrical connecting block as the midpoint and slidably connected to the circular base, the cylindrical connecting block having a second sliding groove for the two support rods to slide respectively, and the bottom end of the mounting box having a first through hole for the top ends of the two support rods to pass through, the first through hole communicating with the cavity. The plate has second through holes for the bottom ends of the two support rods to pass through; two springs are respectively connected between the two support rods and the inner wall of the corresponding second sliding groove. In the reset state of the springs, the support rods are completely located inside the circular base and their top ends are located inside the cavity; a circular extrusion plate is connected to the cavity in adjustable height and is used to selectively extrude one of the support rods so that the corresponding support rod slides out of the corresponding second through hole and abuts against the wall, thereby adjusting the posture of the circular base; a first driving member is connected to the cavity to adjust the height of the circular extrusion plate. The first driving member includes: a first driving motor, vertically connected to the inner top wall of the cavity; a lead screw, which is coaxially connected to the motor shaft of the first driving motor; a first threaded sleeve, one end of which is screwed onto the bottom of the lead screw, and the other end of which is connected to the center of the circular extrusion plate; and an L-shaped rod for limiting the rotation of the first threaded sleeve. The outer side of the first threaded sleeve has a limiting groove for the horizontal bar of the L-shaped rod to slide through, and the vertical bar of the L-shaped rod is connected to the inner top wall of the cavity.

2. The wall surface flatness detection device as described in claim 1, characterized in that, The circular extrusion plate has two third through holes, which are adapted to the support rod. The positions of the two third through holes satisfy the condition that only one support rod can pass through at a time. The first threaded sleeve is rotatably connected to the circular extrusion plate. A second driving member is connected in the cavity to drive the circular extrusion plate to rotate so that one of the third through holes is aligned with the selected support rod.

3. The wall surface flatness detection device as described in claim 2, characterized in that, The second driving element includes: The second drive motor is vertically connected to the inner top wall of the cavity; The drive gear is coaxially connected to the bottom end of the motor shaft of the second drive motor. The circular extrusion plate has an arc-shaped groove, the center of which coincides with the center of the circular extrusion plate. A rack is connected to the inner arc surface of the arc-shaped groove. The drive gear extends into the arc-shaped groove and meshes with the rack, so that when the second drive motor drives the drive gear to rotate, it can drive the circular extrusion plate to rotate.

4. The wall surface flatness detection device as described in claim 1, characterized in that, The bottom of the contact plate is connected to an anti-slip pad, and the anti-slip pad has a fourth through hole for the bottom ends of the two support rods to pass through.

5. The wall surface flatness detection device as described in claim 1, characterized in that, The monitoring device includes a bubble level that is perpendicular to the rotating disk and connected to the top of the rotating disk. The level is determined by observing whether the bubble is centered, which in turn determines whether the rotating disk is vertical.

6. A method for detecting the flatness of a wall surface, characterized in that, Including the following steps: Step 1: Provide the wall flatness detection device as described in claim 1; Step 2: Place the circular base against the wall and use the monitoring device to monitor whether the rotating disk is vertical in order to determine whether the wall is tilted; Step 2.1: If the wall is not tilted, use a pair of projectors to project two reference lines parallel to the plane of the rotating disk to visually observe the flatness of the wall. Step 2.2: If the wall is tilted, adjust the posture of the circular base using the adjusting device until the monitoring device detects that the rotating disk is in a vertical state. Then, use a pair of projection devices to project two reference lines parallel to the plane where the rotating disk is located to visually monitor the flatness of the wall.

7. The wall surface flatness detection method as described in claim 6, characterized in that, When performing step 2.1 or 2.2 above, rotate the rotating disk to adjust the position of the two baselines, thereby visually monitoring the flatness of the entire wall surface.

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